Improved artificial nipple



l ntd y lilik g Stent demic.

Letters Patent No; 97.659, dated December 7, 1869.

` rMPnovEn ARTIFICIAL' -lvrPPLEL Thel Schedule referred to intheselLetters Patent and'making part of the same.

To all whom it (may concern Beit known that I, Hammett D. LocKwooD, of

e Charlestown, in the county of Middlesex, and State of Massachusetts,have invented an Improved Artiicial Nipple; and I do hereby declare thatthe following, taken in connection with the drawings, which ae-`company, and form part of this` specification, is a description ofmyinvention, sufficient -toxenable those skilled in the art topractiseait.`

In the manufacture of rubberknipples for nnrsingbottles, each nipple 'isformed by rst cutting from sheet-rubber` or rubber-compound, a blank of'the propel' shape, then bringingr together the opposite side 1 edges ofthis blank, the riibber` being in asemi-pla'sti'e or viscid condition,then rolling over the other edge to form the rim of the nipple, and thenvulcanizing .the abutting and' turned-over edges in a suitable mould.

AWhen made of a good quality of rubber-compound,

` these nipples Iare enduring, except at one point, namely,

at thepart of the rim Where theedges are united, but at this point the'nipple soon breaks open by reason of the `stlain to which the rimis'subje'cted in stretching the nipple over the neck of a nrsing-bottle.f

" Once broken vin this manner, the nipple becomes useless, asit will notcling to the bottle.

My-invention has reference to overcoming this de# feet, and I accomplishthis` by: placing across the seam,

. under the edge to bey turned over, a small stay or re l inforcement'of thin Icloth, or' other suitable material,

the Stay being concealed under therolledover edge or rim, and beingsecurely fastened in position by theA process of vuleanization.

It is an artificial nipple so made that coustitntes'my invention'.`

The drawings represent a nipple embodying the im'd `provement, and the'manner of applying the stay.

shows the nipple before the rim is formed, or the Stay applied.V p

stay being applied. 5 O Shows the nipple, the rim being formed, exceptat the seam or stay.

D' Shows the finished nipple.

ple, as heretofore made.

a denotes the body of the nipple.

i l) c, the opposite edges, which, being bronght and cemented together,form the seam r The nipple "thus partially formed is shown at A.

A small piece e of ne cloth, or other material,

(but preferably cloth,) is then applied tothe inside" of the seamat theopen end of the nipple, 'as seen at B. This being done, the edge isrolled over, up tov the stay, as seen at C, andthe stayed edgeis alsorolled over, all the abutting parts sticking together by reason ofthe'viscid condition of the mate'ual. The nipple being then vulcanizedina suitable mould, is` thus 'finished The stay,by the rolling-in andvulcanzingprocesses, 'is embedded Within `the fold, and nostrainorstretch of the rim will open the Seam thus reinforced.

I do not claim anipple having a lining extending over the whole of itssurface, thus having throughout.

a doublethickness.

\ I claim an artificial nipple, (made of elastic ma-` tially asdescribed. A A

H. D. LOGKWOOD.

Witnesses: i

FRANCIS GoULD, S. B. KIDDER.

B shows the nipple, before the rim is formed, the

E shows the broken-open rim of the common nip-

